Higher performers upregulate brain signal variability in response to more feature-rich visual input
Sign Up to like & getrecommendations! Published in 2020 at "NeuroImage"
DOI: 10.1016/j.neuroimage.2020.116836
Abstract: The extent to which brain responses differ across varying cognitive demands is referred to as "neural differentiation," and greater neural differentiation has been associated with better cognitive performance in older adults. An emerging approach has… read more here.
Keywords: brain signal; input; variability; feature rich ... See more keywords
The coupling of BOLD signal variability and degree centrality underlies cognitive functions and psychiatric diseases
Sign Up to like & getrecommendations! Published in 2021 at "NeuroImage"
DOI: 10.1016/j.neuroimage.2021.118187
Abstract: Brain signal variability has been consistently linked to functional integration; however, whether this coupling is associated with cognitive functions and/or psychiatric diseases has not been clarified. Using multiple multimodality datasets, including resting-state functional magnetic resonance… read more here.
Keywords: functional integration; cognitive functions; variability; bold signal ... See more keywords
Resting-state neural signal variability in women with depressive disorders
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DOI: 10.2139/ssrn.4052510
Abstract: Aberrant activity and connectivity in default mode (DMN), frontoparietal (FPN), and salience (SN) network regions is well-documented in depression. Recent neuroimaging research suggests that altered variability in the blood oxygen level-dependent (BOLD) signal may disrupt… read more here.
Keywords: signal variability; depression; variability; resting state ... See more keywords
Comparative Analysis of the Permutation and Multiscale Entropies for Quantification of the Brain Signal Variability in Naturalistic Scenarios
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DOI: 10.3390/brainsci10080527
Abstract: As alternative entropy estimators, multiscale entropy (MSE) and permutation entropy (PE) are utilized for quantification of the brain function and its signal variability. In this context, their applications are primarily focused on two specific domains:… read more here.
Keywords: entropy; quantification brain; brain; naturalistic scenarios ... See more keywords
Signal Variability and Cognitive Function in Older Long-Term Survivors of Breast Cancer with Exposure to Chemotherapy: A Prospective Longitudinal Resting-State fMRI Study
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DOI: 10.3390/brainsci12101283
Abstract: The purpose of this study was to assess the effect of chemotherapy on brain functional resting-state signal variability and cognitive function in older long-term survivors of breast cancer. This prospective longitudinal study enrolled women age… read more here.
Keywords: long term; signal variability; breast cancer; resting state ... See more keywords